研究者詳細 - 山口　富子

論文 - 山口　富子

分割表示287 件中 101 - 120 件目／全件表示 >>

溶融溶接を利用した鋳鉄/鋼複合材料の開発査読有り

本田嗣男, 黒木博憲, 山口富子, 西尾一政

溶接学会論文集 : quarterly journal of the Japan Welding Society 29 ( 1 ) 29 - 34 2011年12月

Welding metallurgy of steels

Hayakawa N., Nakamura S., Wang K., Mikami Y., Mochizuki M., Yamaguchi T., Koseki T., Sato Y.

Yosetsu Gakkai Shi/Journal of the Japan Welding Society 80 ( 5 ) 54 - 57 2011年12月

Surface nitriding and improvement of wear resistance of titanium using laser irradiation 査読有り

Yamaguchi T., Yonesho Y., Yonesho Y., Nishio K.

Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals 75 ( 12 ) 697 - 704 2011年12月

記述言語：英語掲載種別：研究論文（学術雑誌）

Pure titanium is a biocompatible material that is also useful in high-temperature environments, however, wear resistance of the pure titanium is weak. To improve the wear resistance of pure titanium, surface modification is performed using laser beam heating under various laser conditions. The modified surface layer produced by laser melting consists of titanium nitride (TiN), which improves the hardness and the wear resistance. However, the surface of this modified layer is not flat. In this study, the laser irradiation was performed in a controlled atmosphere and the effects of the atmosphere on the microstructure, hardness, and wear resistance of the irradiated region were investigated. As the pure titanium surface was heated by laser irradiation, a TiN film was formed on its surface without the introduction of cracks. A lamellar structure was also observed under the TiN film. The maximum TiN thickness obtained without cracking or peeling of the base metal was approximately 13 um. In comparison with the base metal, the hardness and wear resistance of the TiN film were approximately 8 and 22 times higher, respectively. © 2011 The Japan Institute of Metals.

Scopus

その他リンク： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84856436487&origin=inward

レーザ照射によるチタンの表面窒化と耐摩耗性改善査読有り

山口富子, 米正裕, 西尾一政

日本金屬學會誌 ( 公益社団法人日本金属学会 ) 75 ( 12 ) 697 - 704 2011年12月

担当区分：筆頭著者記述言語：日本語掲載種別：研究論文（学術雑誌）

Pure titanium is a biocompatible material that is also useful in high-temperature environments, however, wear resistance of the pure titanium is weak. To improve the wear resistance of pure titanium, surface modification is performed using laser beam heating under various laser conditions. The modified surface layer produced by laser melting consists of titanium nitride (TiN), which improves the hardness and the wear resistance. However, the surface of this modified layer is not flat.   In this study, the laser irradiation was performed in a controlled atmosphere and the effects of the atmosphere on the microstructure, hardness, and wear resistance of the irradiated region were investigated. As the pure titanium surface was heated by laser irradiation, a TiN film was formed on its surface without the introduction of cracks. A lamellar structure was also observed under the TiN film. The maximum TiN thickness obtained without cracking or peeling of the base metal was approximately 13 µm. In comparison with the base metal, the hardness and wear resistance of the TiN film were approximately 8 and 22 times higher, respectively.

DOI： 10.2320/jinstmet.75.697

CiNii Article

その他リンク： https://ci.nii.ac.jp/naid/10030260305

レーザ照射によるチタンの表面窒化と耐摩耗性改善査読有り

山口富子、米正裕、西尾一政

日本金属学会誌 75 ( 12 ) 697 - 704 2011年12月

アルミニウム／銅スタッド溶接部界面の組織と機械的性質査読有り

山口富子,平本翔,,西尾一政

軽金属溶接 49 ( 12 ) 474 - 478 2011年12月

Formation of Intermetallic Compounds on the Bond Interface of Aluminum-Clad Copper and its Influence on Bond Tensile Strength 査読有り

Wei Xie, Yamaguchi Tomiko, Nishio Kazumasa

Applied Mechanics and Materials (Volumes 117 - 119) 117 ( 119 ) 984 - 989 2011年11月

Interface Microstructure and Weld Strength of Steel/Aluminum Alloy Joints by Resistance Spot Welding 査読有り

Nan Wang,Yamaguchi Tomiko, Nishio Kazumasa

Applied Mechanics and Materials 117 ( 119 ) 1895 - 1899 2011年10月

アブレシブウオータージェット切断を利用した高クロム鋳鉄肉盛溶接製篩分器の開発査読有り

本田嗣男, 黒木博憲, 山口富子, 西尾一政

鋳造工学 = Journal of Japan Foundry Engineering Society ( 公益社団法人日本鋳造工学会 ) 83 ( 9 ) 519 - 524 2011年09月

記述言語：日本語掲載種別：研究論文（学術雑誌）

In order to develop wear resistant grizzly plates for sintered ore screening process, a commercial hypereutectic high chromium cast iron containing Nb and V carbides was surfaced by self-shielded tubular-cored arc welding to 32mm thick, 350mm wide and 1000mm long SS400 plates. First, Abrasive Waterjet (AWJ) machinability was investigated using the surfaced SS400 specimens of various thickness, then the abrasion resistance of the deposited metals and conventionally used material was reviewed.   The durability of the newly developed grizzly plates surfaced to 1000mm square SCW490 base metal and machined by AWJ was assessed under the impact and abrading of sintered ore, and compared with conventional cast plates. The main results obtained were as follows ;   (1) When surfacing was carried out with a single torch, transverse cracks generated considerably. On the other hand, the cracks reduced markedly with two-torch surfacing.   (2) The deposited metal showed good abrasion resistance. The AWJ maximum traverse rate however reduced to about half that of SS400 plate.   (3) AWJ machinability significantly reduced when the abrasive waterjets traversed across the cracks, forming uncut zones beneath the cracks by the deflection of the jets.   (4) The newly developed grizzly plates showed about four to six times more durability, while the conventional cast plates only last a couple of months.   (5) Presently, the newly developed grizzly plates are seen to be replacing conventional ones in the plant.

DOI： 10.11279/jfes.83.519

CiNii Article

その他リンク： https://ci.nii.ac.jp/naid/10029579889

アルミニウム/銅クラッド材接合界面における金属間化合物の成長挙動および接合部の引張強さに及ぼす影響

謝〓, 山口富子, 西尾一政

溶接学会全国大会講演概要 89 82 - 83 2011年08月